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13. Legal Proceedings Legal Proceedings (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Loss Contingencies [Line Items]
Estimated loss contingency	$ 30,000,000	$ 0
Interest Payable, Current	5,000,000
Including Interest [Member]
Loss Contingencies [Line Items]
Estimated loss contingency	$ 35,000,000

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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